4KOH Y Y,CHAE S A ,MIN K U. Cough variant asthma is associated with a highly wheezing threshold than classic asthma [J].Chin Exp Allergy, 1993,23: 696-697.
2Brightling CE, Ward R, Gob KL,et al. Eosinophilic bronchitis is an important cause of chronic cough of chronic cough. Am J Respri crit Care Med, 1999,160 (2):406Fujimura M,.
3Ogawa H,Nishizawa Y,et al. Comparison of atopic cough wth cough variant asthma:is atopic cough a precursor of asthma? [J].Thorax, 2003,58(2) : 14-18.
